| Summary: | The land use change of mangrove forests into fish ponds may
cause into a decrease of forest function from being an absorber and reservoir
of CO2 into CO2 emitter to the atmosfer. One of the government programs
in reducing carbon emissions is mangrove forest rehabilitation, including
the rehabilitation at Pandansari Hamlet, Kaliwlingi Village, Brebes. This
research aimed to (1) identify the density and composition of vegetation in
the rehabilitated mangrove forest, (2) estimate the total of carbon stored
including carbon stored in the above ground biomass, in the tree roots and in
the mangrove substrate, and (3) recognize the capacity of the mangrove area
in absorbing CO2 from the atmosfer based on stand ages of 5, 6, 7, and 14
years old at Pandansari Hamlet, Kaliwlingi Village.
Twenty plots of 10 x 10 m were established systematically on the
mangrove area with a distance of 50 m among plots. Trees with diameter of
>5 cm in each plot were sampled and measured for its diameter as well as
identified for the species. The mud thickness was also measured, then soil
samples were taken for analysing its carbon content and bulk density values.
Allometric equation was used to calculate the amount of above ground
biomass and root biomass. The carbon stored in the mangrove substrate was
calculated based on its bulk density, carbon content, total area, and mud
thickness. The amount of carbon absorbed by the forest was calculated
using the total carbon stocks multiplied by the value of 3.67.
The average tree density of the 5.96 ha rehabilitated mangrove
forest was 1835 trees/ha, dominated by 95% of Rhizophora mucronata and
5% of Avicennia marina. The total of carbon stock was 535.46 tons C that
consists of (a) 139.47 tons C stored in the above ground biomass
|
|---|